<?php

    header("content-type:text/html;charset=utf8");

    $con = mysqli_connect("localhost","root","root","user");
    mysqli_query($con,"set names utf8");
    $res = mysqli_query($con,"select * from category");
    $arr = [];
    while($row = mysqli_fetch_assoc($res)){
        $arr[] = $row;
    }
    echo json_encode([
        "meta"=>[
            "stauts"=>0,
            "msg"=>"数据获取成功"
        ],
        "data"=>$arr
    ]);

?>